http://www.snipershide.com/shooting...easuring-straight-line-target-distance-f.html
I mentioned MotionX in another thread.
It is very easy to do, here are the directions...
Use what ever map format you like. Then...
1. Mark a waypoint at your target
2. Mark a waypoint at your shooting position
3. In map view, make sure you are zoomed out enough to see both waypoints in the screen.
4. See the three little horizontal lines in the top left corner? Touch them to bring up Map Options.
5. Scroll down the options to find the measuring tool and select that.
6. Now move the green circle to your shooting position waypoint and the red circle to the target waypoint. The distance between is given in Ft. at the top left corner. You can go into the display menu and change the values from ft. to yards or ridiculous values like meters and kilometers.
I also use this feature to find distance without waypoints by changing the map format to Google Sat. and measuring between landmarks. If you still need a hand feel free to PM me.
Reall, ANY GPS app should be able to do this by setting two seperate waypoints at the shooting location and the target location and then ask your GPS to navigate from one to the other. It will give you the distance between the two waypoints.
Most guys on my SAR team use MotionX which has the measuring tool allowing you to measure distances without going out and physicaly marking the waypoints yourself by way of draging a set of crosshairs between Sat. Images.
I feel like a MotionX salesman, but in reality this app just works really well. Just use it and play with it and it will sell itself.
-your best friend,
Carp